A comparative study of marginal fit of copings prepared with various techniques on different implant abutments

Koc E., Ongul D., Sermet B.

DENTAL MATERIALS JOURNAL, cilt.35, sa.3, ss.447-453, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.4012/dmj.2015-252
  • Dergi Adı: DENTAL MATERIALS JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.447-453
  • Anahtar Kelimeler: Marginal fit, Implant abutment, Dental porcelain, CERAMIC CROWN SYSTEMS, FIXED PARTIAL DENTURES, OF-THE-LITERATURE, IN-VITRO, INTERNAL FIT, FINISH LINES, CAD/CAM, PROSTHESES, RESTORATIONS, CEMENTATION
  • İstanbul Üniversitesi Adresli: Evet

Özet

This study evaluated fabrication techniques of recently introduced all-ceramic copings' marginal adaptation on two different implant abutments with different finish lines. Five different copings were prepared (Casted chrome-cobalt metal coping, Zirkonzahn, Cercon, In Ceram Alumina and IPS e.max Press) on two cementable implant abutments with two marginal designs. Ten samples for each coping group were prepared (totally 100 samples). Copings were cemented to implant abutments and marginal gap measurements were done from 24 points with stereomicroscope and the datas were analyzed by the Kruskal-Wallis test before cementation. Cercon copings showed the lowest marginal fit scores and metal copings showed the highest scores. After cementation, all marginal gap values have been increased. All marginal gap values obtained from crown copings can be considered in clinically acceptable limits (<120 mu m) except metal copings after cementation on abutment with 135 degrees shoulder group (123 mu m).